// 上海一星级 闰年的判定
#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  if ( n % 4 == 0 && n % 100 != 0 || n % 400 == 0 ) {
    cout << "Leap year";
  } else {
    cout << "Common year";
  }
  

  return 0;
}